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Just south of Grand Canyon National Park, South Rim off state highway 64, Arizona. August 8, 2013
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July 2010, Huachuca Oaks Camp, Huachuca Mountains, Arizona
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Huachuca Oaks Camp, Huachuca Mountains, Arizona, July 2010
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Tucson Mountains, Saguaro National Park West. April 18, 2010
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Tucson Mountains, Saguaro National Park West. April 18, 2010
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Psilostrophe cooperiwhitestem paperflower. Found in the Mojave and Colorado Deserts of California, much of the southwestern US deserts and northwestern Mexico. The plant responds to both winter and summer rains and may blooms twice in a year. The name "paperflower" comes from the persistant ray flowers that turn papery as they age. Some are visible in this photo. Photographed at Ranch Santa Ana Botanic Garden Claremont, CA.
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Tucson Mountains, Saguaro National Park West. April 18, 2010
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Tucson Mountains, Saguaro National Park West. April 18, 2010
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on limestone ledges of low hillside slope
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on limestone ledges of low hillside slope
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plant on sandy calcareous soils of grassy highway right-of-way crossing flat plain of degraded grassland merging the Chihuahuan Desert into the southern Llano Estacado.
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plant on sandy calcareous soils of grassy highway right-of-way crossing flat plain of degraded grassland merging the Chihuahuan Desert into the southern Llano Estacado.
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plant on sandy calcareous soils of grassy highway right-of-way crossing flat plain of degraded grassland merging the Chihuahuan Desert into the southern Llano Estacado.
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plants on flat plain of a large bolson in silty, slightly saline, calcareous clay soil, along the margin between a long abandoned agricultural area made rich with diverse annual forbs by recent heavy rains and patches of undisturbed native desert scrub. Site is located just inside (ca. 50 m)the state line.
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plants on flat plain of a large bolson in silty, slightly saline, calcareous clay soil, along the margin between a long abandoned agricultural area made rich with diverse annual forbs by recent heavy rains and patches of undisturbed native desert scrub. Site is located just inside (ca. 50 m)the state line.
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plants on flat plain of a large bolson in silty, slightly saline, calcareous clay soil, along the margin between a long abandoned agricultural area made rich with diverse annual forbs by recent heavy rains and patches of undisturbed native desert scrub. Site is located just inside (ca. 50 m)the state line.
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plants on flat plain of a large bolson in silty, slightly saline, calcareous clay soil, along the margin between a long abandoned agricultural area made rich with diverse annual forbs by recent heavy rains and patches of undisturbed native desert scrub. Site is located just inside (ca. 50 m)the state line.
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plants on flat plain of a large bolson in silty, slightly saline, calcareous clay soil, along the margin between a long abandoned agricultural area made rich with diverse annual forbs by recent heavy rains and patches of undisturbed native desert scrub. Site is located just inside (ca. 50 m)the state line.